Thunder Breathing: Thunderclap and Flash

You take a low stance as you concentrate on your breathing. With a clap of thunder, you disappear from your current location and reappear in a space you can see within range, leaving a small trail of lightning behind you. Though it appears you are teleporting you are instead dashing at the speed of sound, slashing any creature that you run past. This movement does not provoke attack of opportunity. Each creature you choose in the line between the two spaces must make a Dexterity saving throw. On a failed save, a creature takes 1d8 thunder damage and 1d8 slashing damage, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the slashing damage increases by 1d8 for each slot level above 1st.